I've been using the Windows EC2 AMI test agents just fine for some time. Now I'm trying out the Linux version ( specifically ami-c4a968be in us-east-1, Virginia ). Oddly, I'm not seeing any attempt from the agent to connect to our private WPT server.

I confirmed that the instance can reach the WPT server. Pings come back fine, as well as a curl request to the WPT server. The WPT agent appears to be running ok:

Awesome. Let me know if you bump into any issues or missing features. It should be pretty complete but there are a couple of settings that I'm still working on supporting (like fullSizeVideo) and some of the request manipulation options may not work in Firefox yet (adding headers, blocking requests, etc).